Yes just water them.

And try watering from below rather than spraying. I suspect you have only been wetting the surface. They shouldn't dry out in a single day if properly, ie thoroughly, moist.

And be patient - strawberry germination can be slow and erratic

Oh, I was worried that the embryo of the seeds would die of thirst! I read an article saying the soil couldn't be dry for more than two hours. thank you!